PERHITUNGAN TEGANGAN PIPA DARI DISCHARGE KOMPRESOR MENUJU AIR COOLER MENGGUNAKAN SOFTWARE CAESAR II 5.10 PADA PROYEK GAS LIFT COMPRESSOR STATION
DOI:
https://doi.org/10.22441/jtm.v5i2.710Abstract
Gas lift merupakan suatu metode pengangkatan fluida dari lubang sumur yang mengandung minyak bumi dengan cara menginjeksikan gas bertekanan tinggi kedalam kolom fluida. Gas bertekanan berasal dari sumur gas yang ditekan dengan menggunakan kompresor dan terhubung dengan peralatan lain seperti bejana bertekanan dan air cooler yang dihubungkan dengan rangkaian sistem perpipaan. Peningkatan tekanan dan temperatur pada discharge kompresor menyebabkan terjadinya tegangan sepanjang pipa sistem perpipaan tersebut sehingga perlu dilakukan perhitungan tegangan agar sistem perpipaan aman pada saat beroperasi. Hasil yang diharapkan dari perhitungan ini adalah tercapainya desain sistem perpipaan yang aman dengan penyangga pipa yang mampu menahan beban pipa serta tegangan pipa. Perhitungan ini dilakukan dengan menghitung tegangan sustain dan ekspansi termal menggunakan program CAESAR II.5.10 maupun perhitungan manual dengan mengacu pada ASME B31.3 sebagai nilai batasan tegangan izin, dengan jalur pipa yang dihitung adalah dari discharge nozzle kompresor menuju inlet nozzle air cooler pada proyek gas lift compressor station yang berada di Azerbaijan, Asia Tengah. Hasil perhitungan menunjukan bahwa nilai tegangan sustain tertinggi menggunakan program CAESAR II.5.10 sebesar 47746,6 kN/m² dengan batas tegangan izin sebesar 137895,14 kN/m², sedangkan untuk nilai tegangan akibat beban ekspansi terbesar dari hasil CAESAR II.5.10 adalah 23428,73 kN/m² dengan batas tegangan izin 206842,71 kN/m².Downloads
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